A staircase-brick with 3 steps of width 2 is made of 12 unit cubes. Determine all integers
for which it is possible to build a cube of side
using such bricks.
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A staircase-brick with 3 steps of width 2 is made of 12 unit cubes. Determine all integers $n$ for which it is possible to build a cube of side $n$ using such bricks.
Školjka